IB: Add node_guid to struct ib_device
Add a node_guid field to struct ib_device. It is the responsibility
of the low-level driver to initialize this field before registering a
device with the midlayer. Convert everyone to looking at this field
instead of calling ib_query_device() when all they want is the node
GUID, and remove the node_guid field from struct ib_device_attr.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 3a611fe..c06b181 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -3163,22 +3163,6 @@
}
EXPORT_SYMBOL(ib_cm_init_qp_attr);
-static __be64 cm_get_ca_guid(struct ib_device *device)
-{
- struct ib_device_attr *device_attr;
- __be64 guid;
- int ret;
-
- device_attr = kmalloc(sizeof *device_attr, GFP_KERNEL);
- if (!device_attr)
- return 0;
-
- ret = ib_query_device(device, device_attr);
- guid = ret ? 0 : device_attr->node_guid;
- kfree(device_attr);
- return guid;
-}
-
static void cm_add_one(struct ib_device *device)
{
struct cm_device *cm_dev;
@@ -3200,9 +3184,7 @@
return;
cm_dev->device = device;
- cm_dev->ca_guid = cm_get_ca_guid(device);
- if (!cm_dev->ca_guid)
- goto error1;
+ cm_dev->ca_guid = device->node_guid;
set_bit(IB_MGMT_METHOD_SEND, reg_req.method_mask);
for (i = 1; i <= device->phys_port_cnt; i++) {
@@ -3217,11 +3199,11 @@
cm_recv_handler,
port);
if (IS_ERR(port->mad_agent))
- goto error2;
+ goto error1;
ret = ib_modify_port(device, i, 0, &port_modify);
if (ret)
- goto error3;
+ goto error2;
}
ib_set_client_data(device, &cm_client, cm_dev);
@@ -3230,9 +3212,9 @@
write_unlock_irqrestore(&cm.device_lock, flags);
return;
-error3:
- ib_unregister_mad_agent(port->mad_agent);
error2:
+ ib_unregister_mad_agent(port->mad_agent);
+error1:
port_modify.set_port_cap_mask = 0;
port_modify.clr_port_cap_mask = IB_PORT_CM_SUP;
while (--i) {
@@ -3240,7 +3222,6 @@
ib_modify_port(device, port->port_num, 0, &port_modify);
ib_unregister_mad_agent(port->mad_agent);
}
-error1:
kfree(cm_dev);
}
